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(No Model.)

G. W MOGILL.

MACHINE FOR INSERTING AND GLINGHING STAPLES. No. 252,841. Patented Jan. 24,1882.

Wziuesses 1%2/676202 802 6 Wmcaz'za- GEORGE W. MoGILL,

MACHINE FOR INSERTING- FICEe ATE OF NEW YORK, N. Y.

AND CLINCHING STAPLES.

SPECIFICATION forming part of Letters Patent No. 252,841, dated January 24:, 1882. Application filed December 19, 1881. (No model.) Patented in England February 25, 1879, in Germany March 15 1879, in France September 12, 1879, in Belgium January 26 To all whom it may concern Be it known that I, GEORGE W. MoGILL, a citizen of the United States and of the State of New York, residing at the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Machines for Inserting and Olinching Staples in Papers and other Fabrics; and 1 do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a new and useful improvement in machines for driving and clinching staples in papers, cloths, leather, wood, and other similar articles; and it consistsin a modification ofand improvement upon my staple-drivingmachine patented to me Feb-' ruary 1S, 1879, by Letters Patent No. 212,316.

The improvement consists mainly in making the case which holds the driving-plunger, and into which the staple is inserted preparatory to being driven, readily removable from and replaceable in the machine for the more convenient insertion of a staple in said case, and to enable said case to be so placed as to drive a staple either crosswise or lengthwise of thebase-plate of the machine; also, to adapt said driving mechanism to be used independently of the clinching-anvil for driving staples into wood-work when no clinching is desired, as in upholstering furniture, putting down carpets, 850.

In theaccompanying drawings, Figure 1. represents in elevation averlical cross-section of the machine (the plunger-case being in place) through the center of said case. Fig. 2 is a plan view ofa section in line 00 00, Fig. 1. Fig. 3 is a view of the case and its inclosed plunger removed from its guiding collar or socket in the machine; and Fig. 4 is a perspective view of the machine with said plunger-case removed 1880, and in Austria-Hungary May 5, 1880.

In the face of the anvil 0 there is a slight concave depression, 0, across the bottom of which are two shallow grooves, 0 c, the ends of which extend a little beyond the margin of said concavity and turn upward, all as shown and described in my said Patent No. 212,316.

The case D, in its external form, is octagonal, and the socket B is of corresponding form and large enough to allow the case to be easily withdrawn and inserted; and it will be seen that the case may be so inserted as to drive a staple crosswise or lengthwise of the baseplate, as may be desired. I

The plunger E is cylindrical, but has inserted in its lower end a steel driving-blade, e, projecting on each side of the plunger, and forming feathers e', e. The lower end of the case D is scarfed on two opposite sides, as shown at d, which bifurcates it, and leaves between its two feet, d d, a wide-open space, cl, for the reception of a broad-headed staple-a staple with a suspending-ring extending from one side of its head. In the inner side of said feet or legs d d of the case D are vertical grooves g 9, into which the feathers e e fit. The inner portions of these grooves, however, are considerably wider than the thickness of said feathers or driving-blades, to receive the shoulders of a broad-headed staple, and the corners of said driving-blade (feathers 0) project downward a little below the face of the plunger to press with especial force upon the shoulders of the staple, all as shown and described in my said Letters Patent No. 212,316.

To insert a staple in the case D it is most convenient to remove said case from the socket B. The staple is inserted with its legs pointing downward, its shouldersaud legs fitting into the grooves g g. The staple should be made with its legs slightlydiverging from each other, so that when inserted in said grooves the legs of the staple will have a slight elastic outward pressure against legs cl d of the case D, to prevent the staple from falling out. The staple being thus inserted in the case I), the article to be penetrated (if the staple is to be clinched) is placed upon the anvil. Said case is then inserted in the guiding-socket B, and said case, fitting somewhat loosely therein, will by its own weight drop down upon the article to be stapled. Thena single stroke with the hand upon the head E of the plun'ger will drive the staple-legs through the papers, card, or other fabric, and completely clinch them down on the lower side of the same; but when it is not desired to clinch the staplelegs--as in upholstering furniture, putting down carpets, &c.the caseD is not inserted in the socket B, but is used as a separate tool.

The case D and socket 13, instead of being octagonal in form, may be cylindrical, the socket having on its inner surface a small projecting nipple, and the case having in its outer surface two or three longitudinal grooves, into any one of which said nipple will fit when the case is inserted in the socket, according to the position in which said case is turned before being inserted. It is manifest that said grooves must occupy such positions in the surface of the case that when the nipple is in either one of them the driving-blade of the plunger will coincide with one or the other, as may be desired, of the grooves in the face of the anvil. By making the grooves in .the case with beveled sides, and said nipple with a rounded or beveled point, and giving it an elastic hearing by means of a spring at its base, said case D, if cylindrical, may be turned in its socket without being withdrawn therefrom; but as it will always be most convenient to withdraw the case from the socket to insert a staple, I do not regard this last-suggested construction of any great importance, and make no claim upon it. It is manifest that other means for guiding said case in the socket, equivalent to those herein described, may be adopted without departing from the principles of my invention, and hence I do not strictly limit myself to said means above described. The spring a is not absolutely essential in my machine, as the plunger E may be readily retracted by the hand; but I prefer to use the spring.

WVhat I claim as my invention is-- 1. The combination of the anvil (J, the guiding-collar B, and the removable and replaceable case D, containing the driving-plunger E, all constructed and arranged substantially as described.

2. The base-plate A, anvil G, guiding-collar B, and the removable and replaceable case containing the driving plunger, all so constructed that said case may be used in combination with the other parts of the machine for both driving and clinching a staple, or may be withdrawn from the collar B and used as a separate tool for driving a staple without clinching it, substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE l/V. MCGILL.

Witnesses:

VrN'roN OooMBs, JOHN W. McGrLL. 

